running pretty bad - Mustang Evolution

Go Back   Mustang Evolution > 1979-2015 Mustang GT || Tech and Talk > 1979-1995 Mustang GT



Reply
 
Thread Tools Search this Thread
Please support our sponsors and let them know you heard about them here!
Old 02-26-2012, 02:02 PM   #1
Registered Member
Regular
 
Join Date: Jul 2011
Posts: 42
running pretty bad

I have a problem with my 95 5.0 wondering if someone might know what is going on. Well what's going on is whenever I'm getting the throttle at all more than a 1/4 of the way it starts stuttering and bucking. I thought it was a fuel problem at first so I went ahead and replaced the pump the regulator and the filter. Fuel is not the problem. I run premium in it and nothing has changed, just wondering if anyone has any ideas to bounce off thanks.
82stang224 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 02-26-2012, 02:06 PM   #2
Moderator Emeritus
Regular
 
deadsp0t's Avatar
 
Join Date: Aug 2011
Location: MidWorld
Region: Other
Posts: 4,786
If you have mods you could be having a problem with the ECU. When I had problems with my 1st 95 GT I could hit the kick panel and the car would straighten right up.
__________________
That's unimpressive
deadsp0t is offline   Reply With Quote
Old 02-26-2012, 02:17 PM   #3
Registered Member
Regular
 
Join Date: Jul 2011
Posts: 42
Well it wasn't doing this originally I bought the car and it had some bolt ons but nothing too big. And when I brought it home it wasn't doing this. It just recently started. I tried doing a burnout and it just bogged down and wouldn't. Now it just stutters along, I was thinking maybe timing
82stang224 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 02-27-2012, 12:10 AM   #4
Road Trip!
Supporter
 
Join Date: Jun 2006
Region: Missouri
Posts: 8,779
Re: running pretty bad

Your problem is either fuel pressure, delivery, or electrical/timing.Just because you replaced the pump. regulator and filter it doesn't necessarily mean you have adequate pressure or flow.
Check for kinks in the fuel lines (especially at the tank since you replaced the pump) and check the fuel pressure at idle. It should be around 38-40 psi.
Check to see that your timing is properly set and make sure your electrical connections are secure.
A Chilton's or Haynes manual will guide you in performing these checks.
Trojan Horse is offline   Reply With Quote
Old 02-27-2012, 12:26 AM   #5
Registered Member
Regular
 
Join Date: Jul 2011
Posts: 42
Well it has a pressure gauge built into the line, and it reads 40 at idle
82stang224 is offline   Reply With Quote
Old 02-27-2012, 12:42 AM   #6
Road Trip!
Supporter
 
Join Date: Jun 2006
Region: Missouri
Posts: 8,779
Re: running pretty bad

Quote:
Originally Posted by 82stang224 View Post
Well it has a pressure gauge built into the line, and it reads 40 at idle
Ok, you have pressure, now check all the lines for kinks to ensure you have adequate flow.
How far does it drop when you rev it a bit?
Trojan Horse is offline   Reply With Quote
Old 02-27-2012, 12:51 AM   #7
Registered Member
Regular
 
Join Date: Jul 2011
Posts: 42
Well the pressure doesn't drop almost at all in the fuel rail. It just starts jerking and jumping around
82stang224 is offline   Reply With Quote
Old 02-27-2012, 01:20 AM   #8
Registered Member
Regular
 
five_0_85stang's Avatar
 
Join Date: Feb 2012
Region: Illinois
Posts: 24
When I had that problem it was because my Mass airflow sensor went out..to check I unplugged it and reved it and it was smooth so I replaced it then I never had an issue with it...good luck
five_0_85stang is offline   Reply With Quote
Old 02-27-2012, 05:22 PM   #9
Registered Member
Regular
 
Matt5.0's Avatar
 
Join Date: Nov 2011
Region: New Jersey
Posts: 70
I have a problem with my 94 gt sounds like the prestage of what happened to me. My car has lost all power runs for a few min then shuts off. I took it to ford and it was my distributor and ignition mod
Matt5.0 is offline   Reply With Quote
Old 02-27-2012, 05:43 PM   #10
Registered Member
Regular
 
90fox's Avatar
 
Join Date: Feb 2012
Region: Illinois
Posts: 302
I might have to check maf soon. Mine does this too. Mostly if don't let warm up and leave immediatly once I shift to 2nd and all gears if can make it buck feels like back pressure of fuel almost slapping sound coming from rear. However sometimes happens randomly too when driving seems like not on all cylinders....I have new tank,pump,filter, plugs,wires, dist rotor, alternator,now wp and tsat. When I have run fuel inj cleaner it wakes up a lot and did run prem for bit didn't do as much. Amount of fuel in tank doesn't really matter, temp outside either, mostly seems random.
90fox is offline   Reply With Quote
Old 02-27-2012, 10:38 PM   #11
Registered Member
Regular
 
etc1006's Avatar
 
Join Date: Oct 2011
Region: Maryland
Posts: 200
Check your TPS also.

---------- Post added at 11:38 PM ---------- Previous post was at 11:37 PM ----------

Could also have gotten a vacuum leak.
etc1006 is offline   Reply With Quote
Reply

Lower Navigation
Go Back   Mustang Evolution > 1979-2015 Mustang GT || Tech and Talk > 1979-1995 Mustang GT

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Really bad news. GMSPNKR 2005-2010 Mustang GT 23 02-26-2012 11:52 PM
A little bad news choppa5307 1979-1995 Mustang GT 4 02-21-2012 04:44 PM
Blew smoke out exhaust on start up. Is this bad? JohnC. 2005-2010 Mustang GT 16 02-21-2012 02:11 AM
Bad day at work Ilovemustangs88 The Bar 35 02-19-2012 01:44 PM
Bad ignition coil? CrimsonGT 1996-2004 Mustang GT 0 02-17-2012 02:39 PM

» Like Us On Facebook



12:36 AM


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0

MustangEvolution.com is in no way associated with or endorsed by Ford Motor Company.